Eraser.



R. A. COSTELLO.

BRASBR.

APPLICATION IILBD JULYIa. 1914.

Patented Oct. 27, 1914.

NVENTR.

/TNE55E5- fcfb Jmbwa Q/QQQQZ/ EY Zwwwwwww ATTI rHE MORRIS PEFERS CO.. PHOTU'LITHD., WASHINGTON. D. C4

RICHARD A. COSTELLO, OFACHICAGO HEIGHTS, ILLIINOIS.`

Specification of Letters Patent.

Patented Oct. 27, 1914.

applicati@ med July 13, 1914.` serial No. 850,564.

To all whom t may concern Be it known that I, RICHARD A. COSTELLO, a citizen of the United States, residing at the city of Chicago Heights, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Eraser-s, of which the following is a specification.`

My invention relates to devices which are used for erasing chalk marks from blackboards and the like. Such erasers should be light and noiseless, and to this end as well as to provide a suitable erasing face they are preferably made of felt. For this reason, in my improved eraser, the back and erasing strips are made of that material.

The further object of my `invention is to provide means by which the erasing `strips may be securely attached to the felt back in a cheap and simple manner. The resulting device is flexible and resilient and a practical and attractive finish as well as a secure and agreeable hold for the hand are obj tained.

The principles of my invention are illustrated in the drawings, in which- Figure 1 shows a perspective view of my improved eraser; Fig. 2 is a partial section thereof on the line 2--2 of Fig. l; Fig. 3 is an end view of one of the rubbing strips; Fig. 4 is a modified form.

Further describing my invention with reference to the drawings: lis a back piece preferably of felt or other resilient material.

2, 3, 4, 2, 3 4 are rubbing strips secured to the underside of the back l. The rubbing strips are preferably made of felt, and have `their upper portions beveled as shown in Fig. 3 to form slantingor diagonal faces 5 and feathered edges 5. Said faces are applied and secured to the undersidcof the back, as shown in Fig. 2. In assembling the parts one strip of the pair at the center of the eraser to be formed should be placed in position and secured there as by the stitching 6. It will be seen that the rubbing strip may be made to assume an angle with the back corresponding to the beveled face and that the feathered edges are extended on the back, wherebythe seam is readily run. The next strip on the same side is applied in the same manner and so on until a sufficient number of strips as 3 and 4 have been added to complete this half of the eraser. The other strip 2 of the center pair of strips is applied and secured in the same manner and the remaining strips as 3 and 4 of the same side are attached successively in their order untll the eraser is complete. The feathered edgesI of the outermost strips projecting out-` tory fastening for all ordinary purposes, a`

further row of stitching 7 may be run 1n the heel of each strip as shown in Fig. 4.

This easily can be done by means of a proper machine foot, especially as the previous securement by means of the stitchings 6 aids in holding the rubbing strips to receive the second. row of stitches.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is- 1. In an eraser, the combination with a back piece, of a plurality of rubbing strips having beveled faces adjacent to their upper edges, and means securing said beveled faces to the underside of said back piece.

2. In an eraser, the combination with a back piece, of a plurality of rubbing strips havingbeveled faces adjacent to their upper edges adapted to contact with the under face of the back piece, and stitching passing through the toes of said rubbing strips to secure them to the back piece.

3. In an eraser, the combination with a back piece, of a plurality of rubbing strips having beveled faces adjacent to their upper edges adapted to contact with the under face of the back piece, a row of stitching passing through the toe of each rubbing strip, and a second row of stitching passing through the heel of each rubbing strip to secure them to the back piece. j

4. In an eraser, the combination with `a back piece, of a plurality of rubbing strips having beveled faces adjacent to their upper edges adapted to contact with the under face of the back piece, the said strips being arranged in pairs with their feathered edges projecting outwardly, andrews of stitching 1 passing through the upper part of the strips to attach them to the back piece.

5. In an eraser, the combination with a back piece, of a plurality of rubbing strips having beveled faces adjacent to their upper edges adapted to contact with the under face of the back piece, the said strips being arranged in pairs with their feathered edges pro] eeting outwardly, the feathered edges of 1914, in the presence of two subscribing witthe two outside strips formingbeads under; nesses.

the outside edges of the back'pieoe, and rows of stitching passing through the upper partsv of the strips to attach them to the back piece.

In witness whereof, have hereunto subscribed my name, this 10th day of July,

` RICHARD A. COSTELLO.

Witnesses:

C. K. CHAMBERLAIN, A. S. PHILLIPS.

Copies of this patent may be obtained for ive cents each, by addressing the Commissioner of IPatents,

Washington, D. lC. 

